start_with.cpp

#include <rpp/rpp.hpp>
 
#include <iostream>

int main()
{
    rpp::source::just(1, 2, 3)
        | rpp::ops::start_with(5, 6)
        | rpp::ops::subscribe([](int v) { std::cout << v << " "; });
    // Output: 5 6 1 2 3

    rpp::source::just(1, 2, 3)
        | rpp::ops::start_with(rpp::source::just(5), rpp::source::just(6))
        | rpp::ops::subscribe([](int v) { std::cout << v << " "; });
    // Output: 5 6 1 2 3

    rpp::source::just(rpp::source::just(1))
        | rpp::ops::start_with_values(rpp::source::just(5), rpp::source::just(6))
        | rpp::ops::merge()
        | rpp::ops::subscribe([](int v) { std::cout << v << " "; });
    // Output: 5 6 1
 
    return 0;
}